Dr. Tim Johnson

Born in Kent, England, Tim studied Geology at the Universities of Derby and Cambridge. He obtained his Ph.D. in 1999 for a project on migmatitic gneisses from the NE Dalradian of Scotland. A two year postdoctoral position at the University of Graz, Austria, (2000-2002) was followed by a further year of postdoctoral research (2003) with Mike Brown at the University of Maryland, USA.

Tim then spent 3 years investigating fermented aqueous-CO2 fluids when running his own pub in Graz, before moving to Mainz in September 2007.    

Research Interests:

Tim's main research interests include the use of internally consistent thermodynamic databases in the investigation of high-temperature subsolidus and suprasolidus phase equilibria and related metamorphic processes. He is particularly interested in the generation, segregation and emplacement of granitic melt and the consequences for crustal evolution. He has worked on regional and contact metamorphic rocks from Scotland, Brittany, Maine, Ethiopia and South Africa.

Current field areas of interest include the aureole of the Bushveld Complex, South Africa, and regional metamorphic rocks of the Ivrea Zone, Italy.  

Link to Publications

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View image in original size


Dr. Tim Johnson
WG Metamorphic Geology
Room 03-274
Tel: +49(0)6131-39-26825


Institute of Geosciences
Johannes Gutenberg University Mainz
J.-J.-Becher-Weg 21
D-55128 Mainz


Postal Address:

JGU Mainz
D-55099 Mainz 

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